> I presume that it would work because of the low currents involved and the
> fact that RS-232 "0" can be represented by 5V.  Does this mean that a 1 is
> anything less than 3V (which is what i believe the EIA Spec says).
>

The spec says a 1 is anything fom -3 to -25 volts.  The reason this
direct connect method usually works is most 232 receivers have an
input threshold low spec of 0.8 to 1.5 volts.  This direct connect
will work with most ports - if you want  it to work with all ports,
you need the negative swing.

hope this helps
-mike

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Mike Fahrion                mfahrion@bb-elec.com      http://www.bb-elec.com/
B&B Electronics Mfg Co      ph.(815) 433-5100 ext.215    fax (815) 434-7094
707 Dayton Road                 PO Box 1040                  Ottawa IL 61350
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